Marcia Selsor on thu 26 oct 00
Dear Karen,
I posted this info a while back. Stannous chloride will produce a
rainbow opalescent affect.
Both are extremely hazardous to your health, so use with extreme
caution. The chlroides also corrode the squirt bottle spring, so it is
best to rinse the jar between uses.
Happy raku,
Marcia Selsor
Karen Sullivan wrote:
>
> I have not done a lot of Raku, but one process I did try was to glaze the
> work with a crackle white glaze. Pull the piece out of the kiln and as is
> cools I spritz a solution of ferric chloride in water on the piece. It will
> sizzle off until the specific temp has been reached, and suddenly the
> solution causes an iridescent orange to adhere/develop. At which point I
> spritz like a mad-woman as quickly as possible to cover the work in a short
> duration of time.
> Please note that the solution will stain concrete orange, so you might
> consider placing disposable/unimportant metal under the spray area to
> protect the concrete from the orange staining.
> I have no idea whether stannous chloride does the same thing....
> I purchase the ferric chloride from Tri-Ess Sciences, in Burbank, CA. It is
> a business that supplies science materials to theatrical groups, schools,
> etc., a great source. You can get formaldehyde frogs from them also.
> good luck,
> bamboo karen
>
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--
Marcia Selsor
selsor@imt.net
http://www.imt.net/~mjbmls
http://www.imt.net/~mjbmls/spain99.html
http://www.silverhawk.com/ex99/selsor/welcome.html
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